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Problem
How can I display icons in cells?
Cause
Action
Here is a sample icon cell type class:
| // In the .h file class CGXIconControl : public CGXStatic { |
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| DECLARE_CONTROL(CGXIconControl) | |||
| public: | |||
| CGXIconControl(CGXGridCore* pGrid);
virtual ~CGXIconControl(); virtual void Draw(CDC* pDC, CRect rect, ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, const CGXStyle* pStandardStyle); |
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| };
// in the .cpp file IMPLEMENT_CONTROL(CGXIconControl, CGXStatic); CGXIconControl::CGXIconControl(CGXGridCore* pGrid) |
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| : CGXStatic(pGrid) | |||
| {
} CGXIconControl::~CGXIconControl() } |
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| ASSERT(pDC != NULL && pDC->IsKindOf(RUNTIME_CLASS(CDC))); // ASSERTION-> Invalid Device Context ->END ASSERT(nRow <= Grid()->GetRowCount() && nCol <= Grid()->GetColCount()); // ASSERTION-> Cell coordinates out of range ->END ASSERT_VALID(pDC); DrawBackground(pDC, rect, style); if (rect.right <= rect.left || rect.Width() <="1" || rect.Height() <="1)</FONT"> |
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| return; | |||
| CString str = style.GetIncludeValue() ? style.GetValue() : _T("");
if(str.Left(4) == _T("#ICO")) |
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| int n = str.Find(_T(")")); CString strIDResource = str.Mid(5,n-5); UINT nIDResource = _ttoi(strIDResource); HICON hIcon = AfxGetApp()->LoadIcon (nIDResource); CRect r = CGXControl::GetCellRect(nRow, nCol, rect, &style); pDC->DrawIcon(r.left, r.top, hIcon); // child Controls: spin-buttons, hotspot, combobox btn, ... |
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| } | |||
| } | |||
You could register this control in any of your projects and use it as shown below:
| CGXIconControl* iconControl = new CGXIconControl(this); RegisterControl(GX_IDS_CTRL_ICON, iconControl); SetStyleRange(CGXRange(7,7), |
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| CGXStyle() | |||
| .SetControl(GX_IDS_CTRL_ICON) .SetValue("#ICO(149)") |
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| ); | |||
Of course, setup a GX_IDS_CTRL_ICON string resource first. Note that the above code will draw the icon in the resource with the id 149.
